AMD Radeon HD 8690M vs NVIDIA GeForce GTX 660M

VS

AMD Radeon HD 8690M

NVIDIA GeForce GTX 660M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8690M and 1024MB VRAM GeForce GTX 660M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8690M 's Advantages

Released 1 years late

Boost Clock has increased by 3% (975MHz vs 950MHz)

More VRAM (2GB vs 1024GB)

NVIDIA GeForce GTX 660M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 32.00GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8690M

0.624 TFLOPS

GeForce GTX 660M +16%

0.73 TFLOPS

Radeon HD 8690M

VS

GeForce GTX 660M

Graphics Card

Mar 2013

Release Date

Mar 2012

Solar System

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

835 MHz

975 MHz

Boost Clock

950 MHz

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

32.00GB/s

Bandwidth

64.00GB/s

Render Config

5

Compute Units

-

320

Shading Units

384

20

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

7.600 GPixel/s

19.50 GTexel/s

Texture Rate

30.40 GTexel/s

-

624.0 GFLOPS

FP32 (float)

729.6 GFLOPS

39.00 GFLOPS

FP64 (double)

30.40 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Sun

GPU Name

GK107

Sun S3 XT (216-0841009)

GPU Variant

N13E-GE-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

1.27 billion

56 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.0

6.5 (5.1)

Shader Model

5.1

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